Further Reading

Alexander, Colin, Ironside's Line: The definitive guide to the General Headquarters Line planned for Great Britain in response to the threat of German invasion 1940-42 (Storrington, Historic Military Press 1999)

Ashworth, Chris, Action Stations 9: Military airfields of the Central South and South-east (Wellingborough, PSL 1990)

Borden, Peter B, 'A System of Communication Throughout Each County: Fire-Beacons and their Role in the Defence of the Realm, 1803-1', in The Road to Waterloo (London, National Army Museum 1990), pp. 126-31

Bragard, Philippe, Johan Termote and John Williams, Walking the Walls: Historic town defences in Kent, Côte d'Opale and West Flanders (Kent County Council 1999)